Can play MP3 format music from U disk and SD / MMC card directly, support FM stereo radioWith treble, bass, and volume control, very easy to useLow distortion supplies a clearer, stronger and more powerful soundCompatible with car, motorcycle, Mp3, Mp4, computer speaker and other audio applicationsIt has the character of low noise, light weight, large power output and good sound qualityAllows for full control of your volume, treble and bass outputFiltering and anti-large-capacity power circuitDSP sound field pattern of the fourWith Remote control functionSpecifications:Output power: RMS 20W+20W 1KHzSignal level: 220MV 47K